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Anatomic prosthesis for treating hernias, such as inguinal and crural and other herniasAnatomic prosthesis for treating hernias, such as inguinal and crural and other hernias description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070276178, Anatomic prosthesis for treating hernias, such as inguinal and crural and other hernias. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001]The invention relates to the technical field of anatomic prostheses for the treatment of hernias of the abovementioned type. [0002]It is widely known how to manufacture and market anatomic prostheses for hernias which are placed by the surgeon using trocars. These prostheses must be applied perfectly to the hernia region by having a shape compatible with the implantation environment. The prostheses must be made from biocompatible, resorbable or non-resorbable materials. They are made from woven, knitted, or non-woven, non-knitted fabric, made from polypropylene, polyester or other yarns. Some prostheses are designed with assembled walls having specific shapes and profiles so that, after assembly, they provide a sort of shaping for adaptation to the implant environment. This is, for example, the case of prostheses described in patent U.S. Pat. No. 6,066,777. [0003]Some prostheses have undergone heat treatment imparting a shape memory, described for example in patents U.S. Pat. No. 6,723,133 and FR 2,735,015. [0004]Other hernia prostheses have thus been proposed in patents U.S. Pat. No. 6,368,541 and U.S. Pat. No. 5,954,767 with particular convex profiles. [0005]All these hernia prostheses available on the market nevertheless have all or part of the following drawbacks. [0006]Prostheses preshaped by heat treatment imparting a shape memory to the material have the drawback of stiffening, with the consequence of the risks of postoperative pain. Furthermore, the thermoforming operations are costly, and require specific tools and temperature control means. The shaping installation thus remains complex. All the known prostheses are configured in two implant modes, right and left, for "right" or "left" hernias of the patient, forcing the surgeon to select his prosthesis, and the staff to differentiate and manage the inventories. Moreover, these prostheses are manufactured from one and the same material and more seldom from a plurality of similar materials providing the surgeon with the same visual appearance of the prostheses during the operation. These prostheses do not offer any anatomic guide marks apart from the addition of coloured signs or bands for example, to facilitate the implant by the surgeon. [0007]The applicant's approach has therefore been to investigate, based on the prior art corresponding to the market, the possibility of designing a novel prosthesis which overcomes these drawbacks. [0008]The primary object was to design a single prosthesis which can be shaped and implanted both for "right" and "left" hernias of the patient, with the aim of having to manage, handle and store a single type of prosthesis. [0009]A further object of the invention was to make a prosthesis not demanding large scale investment for its manufacture, not requiring a thermoforming phase, and which, in consequence, does not cause postoperative pain. [0010]A further object of the invention was to improve the guidance function to aid the surgeon implanting the prosthesis. [0011]A further object of the invention was to make a prosthesis that could be easily rolled for insertion in the implant trocar, and then adopt its final configuration, right or left, in the inguinal part to be treated. [0012]These objects and others will clearly appear from the rest of the description. [0013]According to a first feature, the anatomic prosthesis for treating inguinal, crural and similar hernias, of the type having a finished convex shape, is characterized in that it has a final shell-shaped configuration with a deformable bottom portion that can be shaped on the right side or the left side of the prosthesis thanks to its reversibility, and in that the said prosthesis has an initially flat base having at least one notch capable of receiving by overlap at least one component allowing, together with the base, the shaping of the shell-shaped prosthesis into its final shape. [0014]The object of the invention is illustrated in a non-limiting manner in the figures of the drawings where: [0015]FIG. 1 is a plan view of the anatomic hernia prosthesis of the invention in a plan view, [0016]FIG. 2 shows a perspective view of the prosthesis of the invention in its reversibility position and in its implant application for a left hernia, [0017]FIG. 3 shows a cross section along AA of FIG. 1 at the location of a first window, [0018]FIG. 4 is a cross section along BB of FIG. 1 at the location of a second window, [0019]FIG. 5 is a view of the body of the prosthesis arranged flat before final shaping of the prosthesis, [0020]FIGS. 5a and 5b are flat views of the windows prepared, which can be positioned around the opening locations for enabling the surgeon to visualize the implant zone of the prostheses of the invention. [0021]To make the object of the invention more concrete, it is now described in a non-limiting manner with reference to the figures. [0022]The anatomic hernia prosthesis of the invention is referenced as a whole by (P) and has the characteristic function of being reversible and being implanted equally on the left or right side. The prosthesis (P) has a final shell-shaped configuration with a convex bottom part (1a) which may alternatively, and as required, be shaped on the right side or the left side. For this purpose, the prosthesis comprises a flat base (1) shown in FIG. 5 having a substantially crescent shape with a regularly curved outer edge (1a) and an inner edge (1b) thereby having a curved appearance but not identical to the edge (1a). An inner notch (1c) is arranged from the inner edge (1b) by defining as end portions (1d) (1e) beak shapes whereof the function will appear below. In the initial state of the prosthesis, a channel (1f) for access to the notch (1c) is therefore defined by the opposite end portions (1d) (1e). Furthermore, the base thereby defines, on either side of the said notch (1c) which is prolonged on only part of the base width, two planes (P1-P2) having a substantially different configuration, the plane P1 being more elongated than the plane (P2), with edges (1g-1h) for curved attachment to the edges (1a) and (1b). [0023]In the initial state of the base (1) before shaping, the notch (1c) has an asymmetrical shape in the initial state that is oblong and symmetrical after final shaping of the prosthesis. Furthermore, the base (1) has, at the location of the plane (P2), a second oblong-shaped closed opening (1m) arranged in an angular plane of 70 to 100.degree. along an XX axis with regard to the longitudinal axis YY of the notch (1c). [0024]The base of the prosthesis thereby formed is made flat. It is capable of receiving two components (2) and (3) constituting windows having larger dimensions than the notch (1c) and the opening (1m) for superimposition thereon. These components are configured by pieces of the same material or different materials to the one constituting the base. The addition of these two components does not alter the mechanical and physical properties of the prosthesis. The component (2) is designed to be superimposed on and to surround the notch (1c) and also to be attached to the opposite sides of the end portions (1d) (1e) having a function and effect of shaping the prosthesis into its final shape by joining the portions (1d-1e). The component (3) has an oblong shape substantially larger than the opening (1m) and is attached to its perimeter. Continue reading about Anatomic prosthesis for treating hernias, such as inguinal and crural and other hernias... Full patent description for Anatomic prosthesis for treating hernias, such as inguinal and crural and other hernias Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Anatomic prosthesis for treating hernias, such as inguinal and crural and other hernias patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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